76565039 has 2 divisors, whose sum is σ = 76565040. Its totient is φ = 76565038.

The previous prime is 76565033. The next prime is 76565077. The reversal of 76565039 is 93056567.

It is a weak prime.

It is an emirp because it is prime and its reverse (93056567) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76565039 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 76564987 and 76565005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76565033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38282519 + 38282520.

It is an arithmetic number, because the mean of its divisors is an integer number (38282520).

Almost surely, 2^76565039 is an apocalyptic number.

76565039 is a deficient number, since it is larger than the sum of its proper divisors (1).

76565039 is an equidigital number, since it uses as much as digits as its factorization.

76565039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 170100, while the sum is 41.

The square root of 76565039 is about 8750.1450845115. The cubic root of 76565039 is about 424.6295068748.

The spelling of 76565039 in words is "seventy-six million, five hundred sixty-five thousand, thirty-nine".